Qt OPC UA

The Qt OPC UA module implements a Qt API to interact with OPC UA on top of a 3rd party OPC UA stack.

The stacks are connected via plugins and can be selected/switched at runtime. Currently, the LGPL v3 implementation FreeOPCUA and the MPLv2 implementation Open62541 are supported.

A short introduction to OPC UA

OPC UA is a protocol for data modelling and secure exchange of data in industrial applications. The protocol offers built-in transport security based on certificates and established cryptographic algorithms. The data modelling system is object oriented and offers support for pre-made models which can be extended to fit special needs.